Heart-stopping footage has captured a huge great white shark creeping up on a diver in a cage.

The breathtaking video begins shows the woman pointing at another shark in front of her and off-camera.

But, without her realising, a four-metre (14ft) great white was approaching from behind.

She only realises its presence when it swims past the cage in front of her.

The video was taken near Guadalupe Island off the coast of Mexico in 2018 and was posted to Facebook by Great White Shark Diving earlier this month.

Martin Graf, who runs the FB page and owns excursion company Shark Diver, has since told Daily Star Online more about the encounter and how such large ocean creatures are able to creep up out of nowhere.

The great white shark appearing from nowhere behind the diver
The great white shark appearing from nowhere behind the diver

Explaining how the shark is named Nicole, he said: “The reaction of the diver was surprise.

“She was looking at another shark and then all of a sudden saw the shadow of Nicole coming up behind her.”

Martin says the ocean creatures are able to sneak up on their prey because they are “ambush predators”.

He continued: “Their colouring is known as countershading and they blend is really well.

Great whites are known as 'ambush predators'
Great whites are known as 'ambush predators'

“If they come from below, the grey is not easy to spot against the dark below them and if they come from the direction of the sun, their white belly blends in as well.

“It is absolutely amazing how these massive animals can ‘come out of nowhere’.”

The shark diver has, himself, had some incredible “out of nowhere” encounters with great whites.

Recalling one of his most memorable ones, he said: “I was watching ‘Scarboard’ – one of our biggest females at around 19ft – and ‘Tzitzimitl’ came up from behind me and very slowly swam just inches past my right shoulder.”

The shark known as “Tzitzimitl” has previously been caught on camera brushing past one of Martin’s diving cages in the same region.

The six-metre shark was filmed nosing the top of the cage which unsurprisingly saw the divers dart back.